// Copyright (c) 2019 Uber Technologies, Inc.
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// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
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// THE SOFTWARE.

package handleroptions

import (
	"time"

	"github.com/m3db/m3/src/x/retry"
)

// PromWriteHandlerForwardingOptions is the forwarding
// options for prometheus write handler.
type PromWriteHandlerForwardingOptions struct {
	// MaxConcurrency is the max parallel forwarding and if zero will be unlimited.
	MaxConcurrency int                                    `yaml:"maxConcurrency"`
	Timeout        time.Duration                          `yaml:"timeout"`
	Retry          *retry.Configuration                   `yaml:"retry"`
	Targets        []PromWriteHandlerForwardTargetOptions `yaml:"targets"`
}

// PromWriteHandlerForwardTargetOptions is a prometheus write
// handler forwarder target.
type PromWriteHandlerForwardTargetOptions struct {
	// URL of the target to send to.
	URL string `yaml:"url"`
	// Method defaults to POST if not set.
	Method string `yaml:"method"`
	// Headers to send along with requests to the target.
	Headers map[string]string `yaml:"headers"`
}
